1420101217 has 2 divisors, whose sum is σ = 1420101218. Its totient is φ = 1420101216.

The previous prime is 1420101209. The next prime is 1420101223. The reversal of 1420101217 is 7121010241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1402427601 + 17673616 = 37449^2 + 4204^2 .

It is a cyclic number.

It is not a de Polignac number, because 1420101217 - 2³ = 1420101209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1420101194 and 1420101203.

It is not a weakly prime, because it can be changed into another prime (1420101257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710050608 + 710050609.

It is an arithmetic number, because the mean of its divisors is an integer number (710050609).

Almost surely, 2^1420101217 is an apocalyptic number.

It is an amenable number.

1420101217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420101217 is an equidigital number, since it uses as much as digits as its factorization.

1420101217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 19.

The square root of 1420101217 is about 37684.2303490465. The cubic root of 1420101217 is about 1124.0175698444.

Adding to 1420101217 its reverse (7121010241), we get a palindrome (8541111458).

The spelling of 1420101217 in words is "one billion, four hundred twenty million, one hundred one thousand, two hundred seventeen".